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Diffstat (limited to 'org.eclipse.text/projection/org/eclipse/jface/text/projection/ProjectionDocument.java')
| -rw-r--r-- | org.eclipse.text/projection/org/eclipse/jface/text/projection/ProjectionDocument.java | 781 |
1 files changed, 0 insertions, 781 deletions
diff --git a/org.eclipse.text/projection/org/eclipse/jface/text/projection/ProjectionDocument.java b/org.eclipse.text/projection/org/eclipse/jface/text/projection/ProjectionDocument.java deleted file mode 100644 index 7ee6a016311..00000000000 --- a/org.eclipse.text/projection/org/eclipse/jface/text/projection/ProjectionDocument.java +++ /dev/null @@ -1,781 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2003 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Common Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/cpl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.jface.text.projection; - -import java.util.ArrayList; -import java.util.List; - -import org.eclipse.jface.text.AbstractDocument; -import org.eclipse.jface.text.BadLocationException; -import org.eclipse.jface.text.BadPositionCategoryException; -import org.eclipse.jface.text.DefaultLineTracker; -import org.eclipse.jface.text.DocumentEvent; -import org.eclipse.jface.text.IDocument; -import org.eclipse.jface.text.IDocumentExtension; -import org.eclipse.jface.text.IDocumentListener; -import org.eclipse.jface.text.ILineTracker; -import org.eclipse.jface.text.IRegion; -import org.eclipse.jface.text.ITextStore; -import org.eclipse.jface.text.Position; -import org.eclipse.jface.text.Region; - - - -/** - * A <code>ProjectionDocument</code> represents a projection of its master - * document. The contents of a projection document is a sequence of fragments of - * the master document, i.e. the projection document can be thought as being - * constructed from the master document by not copying the whole master document - * but omitting several ranges of the master document. - * <p> - * The projection document utilizes its master document as - * <code>ITextStore</code>. - * <p> - * API in progress. Do not yet use. - * - * @since 3.0 - */ -public class ProjectionDocument extends AbstractDocument { - - - /** - * Prefix of the name of the position category used to keep track of the master - * document's fragments that correspond to the segments of the projection - * document. - */ - private final static String FRAGMENTS_CATEGORY_PREFIX= "__fragmentsCategory"; //$NON-NLS-1$ - - /** - * Name of the position category used to keep track of the project - * document's segments that correspond to the fragments of the master - * document. - */ - private final static String SEGMENTS_CATEGORY= "__segmentsCategory"; //$NON-NLS-1$ - - - /** The master document */ - private IDocument fMasterDocument; - /** The master document as document extension */ - private IDocumentExtension fMasterDocumentExtension; - /** The fragments' position category */ - private String fFragmentsCategory; - /** The segment's position category */ - private String fSegmentsCategory; - /** The document event issued by the master document */ - private DocumentEvent fMasterEvent; - /** The document event to be issued by the projection document */ - private ProjectionDocumentEvent fSlaveEvent; - /** The original document event generated by a direct manipulation of this projection document */ - private DocumentEvent fOriginalEvent; - /** Indicates whether the projection document initiated a master document update or not */ - private boolean fIsUpdating= false; - /** Indicated whether the projection document is in auto expand mode nor not */ - private boolean fIsAutoExpanding= false; - /** The position updater for the segments */ - private SegmentUpdater fSegmentUpdater; - /** The position updater for the fragments */ - private FragmentUpdater fFragmentsUpdater; - /** The projection mapping */ - private ProjectionMapping fMapping; - - /** - * Creates a projection document for the given master document. - * - * @param masterDocument the master document - */ - public ProjectionDocument(IDocument masterDocument) { - super(); - - fMasterDocument= masterDocument; - if (fMasterDocument instanceof IDocumentExtension) - fMasterDocumentExtension= (IDocumentExtension) fMasterDocument; - - fSegmentsCategory= SEGMENTS_CATEGORY; - fFragmentsCategory= FRAGMENTS_CATEGORY_PREFIX + hashCode(); - fMasterDocument.addPositionCategory(fFragmentsCategory); - fFragmentsUpdater= new FragmentUpdater(fFragmentsCategory); - fMasterDocument.addPositionUpdater(fFragmentsUpdater); - - fMapping= new ProjectionMapping(masterDocument, fFragmentsCategory, this, fSegmentsCategory); - - ITextStore s= new ProjectionTextStore(masterDocument, fMapping); - ILineTracker tracker= new DefaultLineTracker(); - - setTextStore(s); - setLineTracker(tracker); - - completeInitialization(); - - initializeProjection(); - tracker.set(s.get(0, s.getLength())); - } - - /** - * Disposes this projection document. - */ - public void dispose() { - fMasterDocument.removePositionUpdater(fFragmentsUpdater); - try { - fMasterDocument.removePositionCategory(fFragmentsCategory); - } catch (BadPositionCategoryException x) { - // allow multiple dispose calls - } - } - - private void internalError() { - throw new IllegalStateException(); - } - - protected final Position[] getFragments() { - try { - return fMasterDocument.getPositions(fFragmentsCategory); - } catch (BadPositionCategoryException e) { - internalError(); - } - // unreachable - return null; - } - - protected final Position[] getSegments() { - try { - return getPositions(fSegmentsCategory); - } catch (BadPositionCategoryException e) { - internalError(); - } - // unreachable - return null; - } - - /** - * Returns the projection mapping used by this document. - * - * @return the projection mapping used by this document - */ - public ProjectionMapping getProjectionMapping(){ - return fMapping; - } - - /** - * Returns the master document of this projection document. - * - * @return the master document of this projection document - */ - public IDocument getMasterDocument() { - return fMasterDocument; - } - - /** - * Initializes the projection document from the master document based on - * the master's fragments. - */ - private void initializeProjection() { - - try { - - addPositionCategory(fSegmentsCategory); - fSegmentUpdater= new SegmentUpdater(fSegmentsCategory); - addPositionUpdater(fSegmentUpdater); - - int offset= 0; - Position[] fragments= getFragments(); - for (int i= 0; i < fragments.length; i++) { - Fragment fragment= (Fragment) fragments[i]; - Segment segment= new Segment(offset, fragment.getLength()); - segment.fragment= fragment; - addPosition(fSegmentsCategory, segment); - offset += fragment.length; - } - - } catch (BadPositionCategoryException x) { - internalError(); - } catch (BadLocationException x) { - internalError(); - } - } - - private Segment createSegmentFor(Fragment fragment, int index) throws BadLocationException, BadPositionCategoryException { - - int offset= 0; - if (index > 0) { - Position[] segments= getSegments(); - Segment segment= (Segment) segments[index - 1]; - offset= segment.getOffset() + segment.getLength(); - } - - Segment segment= new Segment(offset, 0); - segment.fragment= fragment; - fragment.segment= segment; - addPosition(fSegmentsCategory, segment); - return segment; - } - - /** - * Adds the given range of the master document to this projection document. - * - * @param offsetInMaster offset of the master document range - * @param lengthInMaster length of the master document range - * @throws BadLocationException if the given range is invalid in the master document - */ - private void internalAddMasterDocumentRange(int offsetInMaster, int lengthInMaster) throws BadLocationException { - - if (lengthInMaster == 0) - return; - - try { - - Position[] fragments= getFragments(); - int index= fMasterDocument.computeIndexInCategory(fFragmentsCategory, offsetInMaster); - - Fragment left= null; - Fragment right= null; - - if (index < fragments.length) { - if (offsetInMaster == fragments[index].offset) - throw new IllegalArgumentException("overlaps with existing fragment"); - if (offsetInMaster + lengthInMaster == fragments[index].offset) - right= (Fragment) fragments[index]; - } - - if (0 < index && index <= fragments.length) { - Fragment fragment= (Fragment) fragments[index - 1]; - if (fragment.includes(offsetInMaster)) - throw new IllegalArgumentException("overlaps with existing fragment"); - if (fragment.getOffset() + fragment.getLength() == offsetInMaster) - left= fragment; - } - - int offsetInSlave= 0; - if (index > 0) { - Fragment fragment= (Fragment) fragments[index - 1]; - Segment segment= fragment.segment; - offsetInSlave= segment.getOffset() + segment.getLength(); - } - - ProjectionDocumentEvent event= new ProjectionDocumentEvent(this, offsetInSlave, 0, fMasterDocument.get(offsetInMaster, lengthInMaster), offsetInMaster, lengthInMaster); - super.fireDocumentAboutToBeChanged(event); - - // check for neighboring fragment - if (left != null && right != null) { - - int endOffset= right.getOffset() + right.getLength(); - left.setLength(endOffset - left.getOffset()); - left.segment.setLength(left.segment.getLength() + right.segment.getLength()); - - removePosition(fSegmentsCategory, right.segment); - fMasterDocument.removePosition(fFragmentsCategory, right); - - } else if (left != null) { - int endOffset= offsetInMaster +lengthInMaster; - left.setLength(endOffset - left.getOffset()); - left.segment.markForStretch(); - - } else if (right != null) { - right.setOffset(right.getOffset() - lengthInMaster); - right.setLength(right.getLength() + lengthInMaster); - right.segment.markForStretch(); - - } else { - // create a new segment - Fragment fragment= new Fragment(offsetInMaster, lengthInMaster); - fMasterDocument.addPosition(fFragmentsCategory, fragment); - Segment segment= createSegmentFor(fragment, index); - segment.markForStretch(); - } - - getTracker().replace(event.getOffset(), event.getLength(), event.getText()); - super.fireDocumentChanged(event); - - } catch (BadPositionCategoryException x) { - internalError(); - } - } - - /** - * Finds the fragment of the master document that represents the given range. - * - * @param offsetInMaster the offset of the range in the master document - * @param lengthInMaster the length of the range in the master document - * @return the fragment representing the given master document range - */ - private Fragment findFragment(int offsetInMaster, int lengthInMaster) { - Position[] fragments= getFragments(); - for (int i= 0; i < fragments.length; i++) { - Fragment f= (Fragment) fragments[i]; - if (f.getOffset() <= offsetInMaster && offsetInMaster + lengthInMaster <= f.getOffset() + f.getLength()) - return f; - } - return null; - } - - /** - * Removes the given range of the master document from this projection - * document. - * - * @param offsetInMaster the offset of the range in the master document - * @param lengthInMaster the length of the range in the master document - * - * @throws BadLocationException if the given range is not valid in the - * master document - * @throws IllegalArgumentException if the given range is not projected in - * this projection document or is not completely comprised by - * an existing fragment - */ - private void internalRemoveMasterDocumentRange(int offsetInMaster, int lengthInMaster) throws BadLocationException { - try { - - IRegion imageRegion= fMapping.toExactImageRegion(new Region(offsetInMaster, lengthInMaster)); - if (imageRegion == null) - throw new IllegalArgumentException(); - - Fragment fragment= findFragment(offsetInMaster, lengthInMaster); - if (fragment == null) - throw new IllegalArgumentException(); - - ProjectionDocumentEvent event= new ProjectionDocumentEvent(this, imageRegion.getOffset(), imageRegion.getLength(), null, offsetInMaster, lengthInMaster); - super.fireDocumentAboutToBeChanged(event); - - if (fragment.getOffset() == offsetInMaster) { - fragment.setOffset(offsetInMaster + lengthInMaster); - fragment.setLength(fragment.getLength() - lengthInMaster); - } else if (fragment.getOffset() + fragment.getLength() == offsetInMaster + lengthInMaster) { - fragment.setLength(fragment.getLength() - lengthInMaster); - } else { - // split fragment into three fragments, let position updater remove it - - // add fragment for the region to be removed - Fragment newFragment= new Fragment(offsetInMaster, lengthInMaster); - Segment segment= new Segment(imageRegion.getOffset(), imageRegion.getLength()); - newFragment.segment= segment; - segment.fragment= newFragment; - fMasterDocument.addPosition(fFragmentsCategory, newFragment); - addPosition(fSegmentsCategory, segment); - - // add fragment for the remainder right of the deleted range in the original fragment - int offset= offsetInMaster + lengthInMaster; - newFragment= new Fragment(offset, fragment.getOffset() + fragment.getLength() - offset); - offset= imageRegion.getOffset() + imageRegion.getLength(); - segment= new Segment(offset, fragment.segment.getOffset() + fragment.segment.getLength() - offset); - newFragment.segment= segment; - segment.fragment= newFragment; - fMasterDocument.addPosition(fFragmentsCategory, newFragment); - addPosition(fSegmentsCategory, segment); - - // adjust length of initial fragment (the left one) - fragment.setLength(offsetInMaster - fragment.getOffset()); - fragment.segment.setLength(imageRegion.getOffset() - fragment.segment.getOffset()); - } - - getTracker().replace(event.getOffset(), event.getLength(), event.getText()); - super.fireDocumentChanged(event); - - } catch (BadPositionCategoryException x) { - internalError(); - } - } - - private IRegion[] computeUnprojectedMasterRegions(int offsetInMaster, int lengthInMaster) throws BadLocationException { - - IRegion[] fragments= null; - IRegion imageRegion= fMapping.toImageRegion(new Region(offsetInMaster, lengthInMaster)); - if (imageRegion != null) - fragments= fMapping.toExactOriginRegions(imageRegion); - - if (fragments == null || fragments.length == 0) - return new IRegion[] { new Region(offsetInMaster, lengthInMaster) }; - - List gaps= new ArrayList(); - - IRegion region= fragments[0]; - if (offsetInMaster < region.getOffset()) - gaps.add(new Region(offsetInMaster, region.getOffset() - offsetInMaster)); - - for (int i= 0; i < fragments.length - 1; i++) { - IRegion left= fragments[i]; - IRegion right= fragments[i + 1]; - int leftEnd= left.getOffset() + left.getLength(); - if (leftEnd < right.getOffset()) - gaps.add(new Region(leftEnd, right.getOffset() - leftEnd)); - } - - region= fragments[fragments.length - 1]; - int leftEnd= region.getOffset() + region.getLength(); - int rightEnd= offsetInMaster + lengthInMaster; - if (leftEnd < rightEnd) - gaps.add(new Region(leftEnd, rightEnd - leftEnd)); - - IRegion[] result= new IRegion[gaps.size()]; - gaps.toArray(result); - return result; - } - - /** - * Ensures that the given range of the master document is part of this - * projection document. - * - * @param offsetInMaster the offset of the master document range - * @param lengthInMaster the length of the master document range - */ - public void addMasterDocumentRange(int offsetInMaster, int lengthInMaster) throws BadLocationException { - - IRegion[] gaps= computeUnprojectedMasterRegions(offsetInMaster, lengthInMaster); - if (gaps == null) - return; - - for (int i= 0; i < gaps.length; i++) { - IRegion gap= gaps[i]; - internalAddMasterDocumentRange(gap.getOffset(), gap.getLength()); - } - } - - /** - * Ensures that the given range of the master document is not part of this - * projection document. - * - * @param offsetInMaster the offset of the master document range - * @param lengthInMaster the length of the master document range - */ - public void removeMasterDocumentRange(int offsetInMaster, int lengthInMaster) throws BadLocationException { - - IRegion[] fragments= null; - IRegion imageRegion= fMapping.toImageRegion(new Region(offsetInMaster, lengthInMaster)); - if (imageRegion != null) - fragments= fMapping.toExactOriginRegions(imageRegion); - - if (fragments == null || fragments.length == 0) - return; - - for (int i= 0; i < fragments.length; i++) { - IRegion fragment= fragments[i]; - internalRemoveMasterDocumentRange(fragment.getOffset(), fragment.getLength()); - } - } - - /** - * Returns whether this project is being updated. - * - * @return <code>true</code> if the document is updating - */ - protected boolean isUpdating() { - return fIsUpdating; - } - - /* - * @see org.eclipse.jface.text.IDocument#replace(int, int, java.lang.String) - */ - public void replace(int offset, int length, String text) throws BadLocationException { - try { - fIsUpdating= true; - if (fMasterDocumentExtension != null) - fMasterDocumentExtension.stopPostNotificationProcessing(); - - super.replace(offset, length, text); - - } finally { - fIsUpdating= false; - if (fMasterDocumentExtension != null) - fMasterDocumentExtension.resumePostNotificationProcessing(); - } - } - - /* - * @see org.eclipse.jface.text.IDocument#set(java.lang.String) - */ - public void set(String text) { - try { - fIsUpdating= true; - if (fMasterDocumentExtension != null) - fMasterDocumentExtension.stopPostNotificationProcessing(); - - super.set(text); - - } finally { - fIsUpdating= false; - if (fMasterDocumentExtension != null) - fMasterDocumentExtension.resumePostNotificationProcessing(); - } - } - - /** - * Transforms a document event of the master document into a projection - * document based document event. - * - * @param masterEvent the master document event - * @return the slave document event - */ - private ProjectionDocumentEvent normalize(DocumentEvent masterEvent) throws BadLocationException { - if (!isUpdating()) { - IRegion imageRegion= fMapping.toExactImageRegion(new Region(masterEvent.getOffset(), masterEvent.getLength())); - if (imageRegion != null) - return new ProjectionDocumentEvent(this, imageRegion.getOffset(), imageRegion.getLength(), masterEvent.getText(), masterEvent); - return null; - } else { - ProjectionDocumentEvent event= new ProjectionDocumentEvent(this, fOriginalEvent.getOffset(), fOriginalEvent.getLength(), fOriginalEvent.getText(), masterEvent); - fOriginalEvent= null; - return event; - } - } - - private boolean includes(IRegion region, int offset) { - if (region == null) - return false; - return region.getOffset() <= offset && offset <= region.getOffset() + region.getLength(); - } - - private boolean includes(IRegion region1, int offset, int length) { - if (region1 == null) - return false; - return region1.getOffset() <= offset && (offset + length <= region1.getOffset() + region1.getLength()); - } - - /** - * Compute the gaps that must be covered in order to ensure that the range affected - * by the given document event is completely projected. - * - * @param event the master document event - * @return the gaps to be covered - */ - private IRegion[] computeCoverageGap(DocumentEvent event) { - - IRegion left= null; - List gaps= new ArrayList(); - - try { - // deal with the beginning of the event region - int imageOffset= fMapping.toImageOffset(event.getOffset()); - if (imageOffset == -1) { - Position[] fragments= getFragments(); - int index= fMasterDocument.computeIndexInCategory(fFragmentsCategory, event.getOffset()); - if (index < fragments.length) { - Fragment fragment= (Fragment) fragments[index]; - left= new Region(event.getOffset(), fragment.getOffset() - event.getOffset()); - gaps.add(left); - } - } - - // the event itself - if (!includes(left, event.getOffset(), event.getLength())) - gaps.add(new Region(event.getOffset(), event.getLength())); - - // deal with the end of the event region - int inclusiveOriginEndOffset= event.getOffset() + Math.max(0, event.getLength() - 1); - int inclusiveImageEndOffset= fMapping.toImageOffset(inclusiveOriginEndOffset); - if (inclusiveImageEndOffset == -1 && !includes(left, inclusiveOriginEndOffset)) { - int index= fMasterDocument.computeIndexInCategory(fFragmentsCategory, inclusiveOriginEndOffset); - if (0 < index) { - Position[] fragments= getFragments(); - Fragment fragment= (Fragment) fragments[index - 1]; - gaps.add(new Region(fragment.getOffset(), inclusiveOriginEndOffset + 1 - fragment.getOffset())); - } - } - - } catch (BadLocationException e) { - internalError(); - } catch (BadPositionCategoryException e) { - internalError(); - } - - IRegion[] result= new IRegion[gaps.size()]; - gaps.toArray(result); - return result; - } - - /** - * Ensures that when the master event effects this projection document, that the whole region described by the - * event is part of this projection document. - * - * @param masterEvent the master document event - * @return <code>true</code> if masterEvent affects this projection document - * @throws BadLocationException in case the master event is not valid - */ - protected final boolean adaptProjectionToMasterChange(DocumentEvent masterEvent) throws BadLocationException { - if (!isUpdating() && fFragmentsUpdater.affectsPositions(masterEvent) || fIsAutoExpanding) { - - IRegion[] gaps= computeCoverageGap(masterEvent); - for (int i= 0; i < gaps.length; i++) { - IRegion gap= gaps[i]; - addMasterDocumentRange(gap.getOffset(), gap.getLength()); - } - return true; - - } else if (fMapping.getImageLength() == 0 && masterEvent.getLength() == 0) { - - // there is no segment in this projection document, thus one must be created - // need to bypass the usual infrastructure as the new segment/fragment would be of length 0 and thus the segmentation be not well formed - - try { - Fragment fragment= new Fragment(0, 0); - fMasterDocument.addPosition(fFragmentsCategory, fragment); - createSegmentFor(fragment, 0); - } catch (BadPositionCategoryException x) { - internalError(); - } - } - - return isUpdating(); - } - - /** - * When called, this projection document is informed about a forthcoming - * change of its master document. This projection document checks whether - * the master document change affects it and if so informs all document - * listeners. - * - * @param masterEvent the master document event - */ - public void masterDocumentAboutToBeChanged(DocumentEvent masterEvent) { - try { - - boolean assertNotNull= adaptProjectionToMasterChange(masterEvent); - fSlaveEvent= normalize(masterEvent); - if (assertNotNull && fSlaveEvent == null) - internalError(); - - fMasterEvent= masterEvent; - if (fSlaveEvent != null) - delayedFireDocumentAboutToBeChanged(); - - } catch (BadLocationException e) { - internalError(); - } - } - - /** - * When called, this projection document is informed about a change of its - * master document. If this projection document is affected it informs all - * of its document listeners. - * - * @param masterEvent the master document event - */ - public void masterDocumentChanged(DocumentEvent masterEvent) { - if ( !isUpdating() && masterEvent == fMasterEvent) { - if (fSlaveEvent != null) { - try { - getTracker().replace(fSlaveEvent.getOffset(), fSlaveEvent.getLength(), fSlaveEvent.getText()); - fireDocumentChanged(fSlaveEvent); - } catch (BadLocationException e) { - internalError(); - } - } else { - ensureWellFormedSegmentation(); - } - } - } - - /* - * @see org.eclipse.jface.text.AbstractDocument#fireDocumentAboutToBeChanged(org.eclipse.jface.text.DocumentEvent) - */ - protected void fireDocumentAboutToBeChanged(DocumentEvent event) { - fOriginalEvent= event; - // delay it until there is a notification from the master document - // at this point, it is expensive to construct the master document information - } - - /** - * Fires the slave document event as about-to-be-changed event to all registered listeners. - */ - private void delayedFireDocumentAboutToBeChanged() { - super.fireDocumentAboutToBeChanged(fSlaveEvent); - } - - /** - * Ignores the given event and sends the semantically equal slave document event instead. - * - * @param event the event to be ignored - */ - protected void fireDocumentChanged(DocumentEvent event) { - super.fireDocumentChanged(fSlaveEvent); - } - - /* - * @see org.eclipse.jface.text.AbstractDocument#updateDocumentStructures(org.eclipse.jface.text.DocumentEvent) - */ - protected void updateDocumentStructures(DocumentEvent event) { - super.updateDocumentStructures(event); - ensureWellFormedSegmentation(); - } - - private void ensureWellFormedSegmentation() { - Position[] segments= getSegments(); - for (int i= 0; i < segments.length; i++) { - Segment segment= (Segment) segments[i]; - if (segment.isDeleted()) { - try { - removePosition(fSegmentsCategory, segment); - fMasterDocument.removePosition(fFragmentsCategory, segment.fragment); - } catch (BadPositionCategoryException e) { - internalError(); - } - } else if (i < segments.length - 1) { - Segment next= (Segment) segments[i + 1]; - if (next.isDeleted()) - continue; - Fragment fragment= segment.fragment; - if (fragment.getOffset() + fragment.getLength() == next.fragment.getOffset()) { - // join fragments and their corresponding segments - segment.setLength(segment.getLength() + next.getLength()); - fragment.setLength(fragment.getLength() + next.fragment.getLength()); - next.delete(); - } - } - } - } - - /* - * @see IDocumentExtension#registerPostNotificationReplace(IDocumentListener, IDocumentExtension.IReplace) - */ - public void registerPostNotificationReplace(IDocumentListener owner, IDocumentExtension.IReplace replace) { - if (!isUpdating()) - throw new UnsupportedOperationException(); - super.registerPostNotificationReplace(owner, replace); - } - - /** - * Sets the auto expand mode for this document. - */ - public void setAutoExpandMode(boolean autoExpandMode) { - fIsAutoExpanding= autoExpandMode; - } - - /** - * Replaces all master document ranges with the given master document range. - * - * @param offsetInMaster the offset in the master document - * @param lengthInMaster the length in the master document - * @throws BadLocationException if the given range of the master document is not valid - */ - public void replaceMasterDocumentRanges(int offsetInMaster, int lengthInMaster) throws BadLocationException { - try { - - ProjectionDocumentEvent event= new ProjectionDocumentEvent(this, 0, fMapping.getImageLength(), fMasterDocument.get(offsetInMaster, lengthInMaster), offsetInMaster, lengthInMaster); - super.fireDocumentAboutToBeChanged(event); - - Position[] fragments= getFragments(); - for (int i= 0; i < fragments.length; i++) { - Fragment fragment= (Fragment) fragments[i]; - fMasterDocument.removePosition(fFragmentsCategory, fragment); - removePosition(fSegmentsCategory, fragment.segment); - } - - Fragment fragment= new Fragment(offsetInMaster, lengthInMaster); - Segment segment= new Segment(0, 0); - segment.fragment= fragment; - fragment.segment= segment; - fMasterDocument.addPosition(fFragmentsCategory, fragment); - addPosition(fSegmentsCategory, segment); - - getTracker().set(fMasterDocument.get(offsetInMaster, lengthInMaster)); - super.fireDocumentChanged(event); - - } catch (BadPositionCategoryException x) { - internalError(); - } - } -} |